Nine mm Cold Rolled Steel Rebars with High Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 15000 m.t./month
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Specifications of Nine mm Cold Rolled Steel Rebars with High Quality:
Name | Cold Rolled Steel Rebar | |
Diameter | 5mm,5.5mm,6mm,6.5mm,7mm,8mm,9mm,10mm, 11mm,12mm, | |
Length | 6M, 9M,12M or as required | |
Price | Keep lower operating costs so as to offer competitive price for our clients | |
Label | to be specified by customer, generally, each bundle has 1-2 labels | |
Application | Building, construction | |
Invoicing | Actual or Theoretical Weight Basis as buyer’s request. | |
Theoretical weight and section area of each diameter of Nine mm Cold Rolled Steel Rebars with High Quality as below for your information:
Diameter(mm) | Section area (mm²) | Mass(kg/m) | Weight of 12m (kg) | Pcs/ton |
9 | 63.6 | 0.499 | 5.988 | 167 |
Packaging & Delivery of Nine mm Cold Rolled Steel Rebars with High Quality:
Packaging Detail: products are packed in bundle and then shipped by container or bulk vessel, deformed bar is usually naked strapping delivery, when storing, please pay attention to moisture proof. The performance of rust will produce adverse effect.
Each bundle weight: 2-3MT, or as required
Payment terms: TT payment in advance or Irrevocable LC at sight.
Trade terms :FOB, CFR, CIF
Delivery Detail: within 45 days after received advanced payment or LC.
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.
Q2: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will arrange production. The shipping date is dependent upon the quatity, how many sizes you want and the plan of production, but is typically 1 month to 2 month days from the beginning of production.
Images of Nine mm Cold Rolled Steel Rebars with High Quality:
- Q: Are steel rebars suitable for use in sports stadium construction?
- Yes, steel rebars are suitable for use in sports stadium construction. Steel rebars, which are short for reinforcing bars, are commonly used in construction projects, including the building of sports stadiums. They provide enhanced strength and durability to the concrete structures by reinforcing them against tension forces. The use of steel rebars ensures that the stadium can withstand heavy loads, vibrations, and other external forces that may occur during sporting events or in case of natural disasters. Moreover, steel rebars are resistant to corrosion, which is crucial in maintaining the structural integrity of the stadium over time. Therefore, steel rebars are a reliable and suitable choice for use in sports stadium construction.
- Q: What is the impact of steel rebars on the overall carbon footprint of a construction project?
- Steel rebars have a significant impact on the overall carbon footprint of a construction project. The production of steel involves high carbon emissions due to the extraction and processing of iron ore, as well as the energy-intensive manufacturing process. Additionally, the transportation and installation of steel rebars contribute to the carbon footprint. However, the durability and strength of steel rebars offer long-term benefits by reducing the need for frequent repairs or replacements, ultimately mitigating the carbon emissions associated with maintenance. Therefore, while steel rebars contribute to the carbon footprint initially, their longevity and structural advantages can help offset these emissions over the lifespan of the construction project.
- Q: How are steel rebars protected during transportation?
- Steel rebars are typically protected during transportation by being bundled together and secured with steel straps or wire ties. They may also be covered with a protective coating or wrapped in plastic to prevent corrosion and damage from moisture or other external elements. Additionally, rebars are often stored and transported on pallets or in specialized containers to ensure safe handling and prevent any bending or distortion.
- Q: What is the effect of welding defects on the performance of steel rebars?
- Welding defects can have a significant impact on the performance of steel rebars. These defects can weaken the structural integrity of the rebars, leading to potential failures and compromising the overall strength and durability of the construction project. One of the common welding defects is porosity, which is caused by the presence of gas pockets or voids in the weld. Porosity weakens the weld joint, reducing its load-bearing capacity and making it more susceptible to cracking or breaking under stress. This can result in a decreased resistance to external forces, such as the weight of the structure or seismic activities, leading to potential collapse or structural failure. Another welding defect is lack of fusion, which occurs when there is insufficient bonding between the base metal and the weld metal. This results in a weak joint that is prone to separation or cracking under load. Lack of fusion can lead to reduced mechanical strength and compromised structural performance, as the rebars may not be able to withstand the expected load or forces exerted on them. Furthermore, the presence of weld spatter or excessive weld reinforcement can also negatively affect the performance of steel rebars. Weld spatter refers to the undesirable splashes or droplets of molten metal that can adhere to the surface of the rebar, creating potential weak points. Excessive weld reinforcement, on the other hand, can add unnecessary weight to the rebar and create stress concentrations, further increasing the likelihood of failure. In summary, welding defects on steel rebars can significantly impact their performance by weakening the structural integrity, reducing load-bearing capacity, and increasing the susceptibility to cracking or breaking under stress. Therefore, it is crucial to ensure proper welding techniques and quality control measures are in place to minimize or eliminate these defects and ensure the safety and reliability of the construction project.
- Q: Can steel rebars be used in road or highway construction?
- Road or highway construction can utilize steel rebars. Reinforcing bars, also known as steel rebars, are commonly employed in the construction sector to bolster the strength and support of concrete structures. In the realm of road and highway construction, rebars are typically utilized in the creation of reinforced concrete pavements, bridge decks, and retaining walls. By embedding rebars in concrete, its tensile strength can be enhanced, as concrete is robust in compression but weak in tension. The addition of rebars to the concrete aids in distributing tensile forces, thus enhancing the overall longevity and load-bearing capacity of road or highway infrastructure. The utilization of steel rebars in road or highway construction presents numerous advantages. Firstly, it enhances the structural integrity and lifespan of the infrastructure, as reinforced concrete structures are better equipped to withstand heavy traffic loads, temperature fluctuations, and environmental factors. Secondly, rebars assist in mitigating cracking and deterioration of the concrete, thereby reducing the necessity for frequent repairs and maintenance. Additionally, the utilization of rebars allows for more efficient and cost-effective construction, as it permits the use of thinner concrete sections without compromising strength. All in all, steel rebars are an indispensable component in road or highway construction, as they provide the essential reinforcement to ensure the strength, durability, and longevity of the infrastructure.
- Q: What are the challenges associated with the installation of steel rebars?
- The installation of steel rebars presents numerous challenges. Firstly, the weight of the rebars can pose a significant obstacle. These heavy structures may require the use of heavy machinery or manual labor to lift and maneuver them into position, potentially endangering workers' safety and demanding additional time and resources for proper installation. Secondly, accurately placing the rebars can be a complex task, particularly in intricate or complicated structures. Achieving precise positioning according to design and structural requirements proves challenging in areas with limited accessibility or congested reinforcement zones. Skilled labor and careful coordination with other trades involved in the construction process are necessary. Another challenge relates to protecting the rebars from corrosion. When exposed to moisture and environmental chemicals, steel rebars are prone to corrosion. Consequently, appropriate measures must be implemented to ensure adequate corrosion protection, such as applying protective coatings or ensuring sufficient concrete cover. This adds complexity to the installation process. Additionally, seamless integration between different construction teams is crucial in rebar installation. Properly integrating the rebars with other structural elements like columns, beams, and walls requires effective communication and collaboration among the design team, steel fabricators, and construction teams. Failure to achieve such coordination may result in conflicts or delays. Furthermore, working at heights or in confined spaces poses additional challenges in terms of safety and accessibility during rebar installation. To mitigate associated risks, it is imperative to implement adequate safety measures, including scaffolding, harnesses, and providing workers with appropriate training. Lastly, the cost of steel rebars can be a challenge, particularly when facing budgetary constraints. As a significant component of the construction process, the cost of rebars may fluctuate due to market conditions or availability. Consequently, project managers must meticulously plan and budget for rebar installation to avoid unexpected cost overruns. In conclusion, the installation of steel rebars presents a multitude of challenges, encompassing the weight of the rebars, accurate placement, corrosion protection, coordination with other trades, working at heights or in confined spaces, and cost considerations. Addressing these challenges necessitates skilled labor, thorough planning, effective communication, and adherence to safety protocols.
- Q: How are steel rebars installed in concrete slabs?
- The process of reinforcing concrete slabs involves the installation of steel rebars. These rebars are placed in a specific pattern within the concrete slab to provide additional strength and support. To begin, the area where the concrete slab will be poured is prepared by excavating and leveling the ground. A layer of compacted gravel or crushed stone, known as the base, is then placed to create a stable foundation. Once the base is in place, the rebars are positioned within the slab according to the desired locations. Typically, they are arranged in a grid-like pattern, with horizontal rebars placed parallel to each other and vertical rebars placed perpendicular to the horizontal ones. The spacing and diameter of the rebars depend on the design requirements and load capacity. To ensure proper positioning, plastic bar supports or chairs are used to lift the rebars off the ground and hold them in place. Additionally, the rebars are tied together at the intersections using wire or metal ties to maintain their relative positions during the concrete pouring process. After the rebars are properly positioned, the concrete is poured over them. The concrete mixture is carefully spread evenly across the entire area of the slab, fully encasing the rebars. Vibrating tools may be utilized to eliminate air bubbles and consolidate the concrete around the rebars. Once the concrete is poured, it is left to cure and harden. During this time, the rebars provide reinforcement, increasing the strength and load-bearing capacity of the slab. Once fully cured, the concrete slab with embedded rebars becomes a durable and structurally sound element capable of withstanding various loads and stresses. In conclusion, the installation of steel rebars in concrete slabs involves positioning them in a grid-like pattern and pouring the concrete over them. This reinforcing process enhances the strength and durability of the slab, making it suitable for a wide range of applications.
- Q: How do steel rebars contribute to the strength of concrete?
- The strength of concrete is enhanced in various ways by steel rebars. Firstly, they increase the tensile strength of concrete, which is otherwise relatively low. Although concrete is excellent at withstanding compression, it is weak when it comes to resisting tension. This is where steel rebars come into play. By embedding them within the concrete, they provide extra strength and help prevent cracks from forming and spreading. Secondly, the bond between concrete and the reinforcement material is improved by steel rebars. The ribbed surface of the rebars creates a better grip with the concrete, ensuring a stronger bond. This bond is crucial as it allows the concrete and steel to work together, distributing the loads and minimizing the risk of structural failure. Furthermore, the overall durability and longevity of concrete structures are increased by steel rebars. They are resistant to corrosion, which is a major concern in coastal or high humidity areas. The corrosion resistance of rebars ensures that the concrete remains structurally sound for a longer period, reducing maintenance costs and extending the lifespan of the structure. In addition to their strength-enhancing abilities, steel rebars also contribute to the structural stability of concrete elements. They help reinforce critical areas such as beams, columns, and foundations, where high loads and forces are present. By providing additional support and reinforcement, steel rebars help prevent excessive deflection, bending, or failure of these elements under heavy loads. To summarize, steel rebars are crucial in enhancing the strength of concrete structures by improving tensile strength, bond strength, durability, and overall structural stability. Incorporating them into concrete elements is essential to ensure the longevity and safety of various construction projects.
- Q: What is the process of installing steel rebars in slabs and beams?
- The process of installing steel rebars in slabs and beams involves several steps. Firstly, the design and layout of the rebars are determined based on the structural requirements. The rebars are then cut, bent, and shaped according to the specifications. Next, the concrete forms for the slabs and beams are prepared, ensuring they are clean and properly aligned. Once the forms are ready, the rebars are placed inside the forms in the desired positions, maintaining the required spacing and clearances as per the design. Proper support is provided to hold the rebars in place and prevent displacement during the concrete pouring process. After the rebars are correctly positioned, concrete is poured into the forms, covering the rebars entirely. During pouring, care is taken to ensure that the concrete adequately surrounds and encases the rebars, providing the necessary structural integrity. Finally, the concrete is allowed to cure and harden, creating a strong bond with the rebars. Once the concrete has fully cured, the forms are removed, and any excess concrete or debris is cleaned off the surface. Overall, the process of installing steel rebars in slabs and beams involves careful planning, precise positioning, and proper concrete placement to create a reinforced structure that can withstand the intended loads and stresses.
- Q: Are there any standards for the spacing of steel rebars in concrete?
- Steel rebars in concrete have specific spacing standards in place to guarantee the durability and structural integrity of the reinforced concrete. These standards may vary depending on factors such as the type of structure, load conditions, and local building codes. In the United States, the American Concrete Institute (ACI) provides guidelines for rebar spacing in their publication ACI 318, known as "Building Code Requirements for Structural Concrete." According to ACI 318, the minimum spacing between parallel reinforcing bars should be equal to or greater than the maximum bar size or 1.5 times the diameter of the largest coarse aggregate used in the concrete, whichever is larger. For instance, if the maximum bar size is 12mm and the largest coarse aggregate size is 20mm, the minimum spacing between the rebars should be 30mm (1.5 times the largest aggregate size). This ensures sufficient concrete cover around each rebar, protecting it from corrosion and providing adequate bond strength. In addition to the minimum spacing, ACI 318 also offers guidelines for the maximum spacing of rebars. These guidelines take into account factors such as the size and shape of the concrete member, the type of loading it will experience, and the required strength. The maximum spacing is typically determined to prevent excessive cracking and ensure proper distribution of loads throughout the structure. It is important to note that local building codes and regulations may have additional requirements or deviations from the ACI standards. Therefore, it is always recommended to consult the relevant building codes or work with a qualified structural engineer to ensure compliance with the specific spacing requirements for steel rebars in concrete in your area.
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Nine mm Cold Rolled Steel Rebars with High Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 15000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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